Contacts that are already in one memory or account on the LG smartphone can be copied to another, for example, it is possible to copy the contacts from the internal memory to the memory card.

Android 9 | LG UX 9.0
Step 1:  Open the  Contacts -App
Step 2:  Open the  Menu
Step 3:  Tap on  Manage contacts
Step 4:  Tap on  Copy
Step 5:  Choose  FROM  and  TO  Location
Step 6:  Tap on  Copy
Step 7:  Confirm with  Copy
  1. Open the Contacts-App
  2. Open the Menu
  3. Tap on Manage contacts
  4. Tap on Copy
  5. Choose FROM and TO Location
  6. Tap on Copy
  7. Confirm with Copy

LG Instructions